Scaffold-support.



,084. PATENTED JUNE 4, 1907.

E. M0GOY & G. H. H. WHEELER.

SGAFFOLD SUPPORT.

APPLIOATION I'ILBD MAY 2a, 1906.

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THE NORRIS PETERS cm, WASHINGTON, v. c.

UNITED STATES PATENT OFFICE.

ELIJAH MCCOY AND CHARLES H. H. WHEELER, OF DETROIT, MICHIGAN; SAID MCCOYASSIGNOR TO NELSON S. PRAIGG, OF DETROIT, MICHIGAN.

S-CAFFOLD-SUPPORT.

Specification of Letters Patent.

Patented June 4, 1907.

Application filed May 28, 1906. Serial No. 319,008-

To all whom it may concern.-

Be it known that we, ELIJAI-I MCCOY and CHARLEs H. H. WHEELER, citizensof the United States of America, residing at De troit, in the county ofWayne and State of Michigan, have invented certain new and usefulImprovements in Scaffold-Supports, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to improvements in scafi'old supports andespecially to that class of such supports which are triangular in formand adapted to be attached to the wall of a building by engaging thesame with the sheeting, and the object of the invention is to soconstruct the same as to make a very light yet strong and rigid framewhich may be folded into a small space and to provide means fordetachably securing it rigidly to the wall, which means also serves as alock to hold the parts rigidly in place and prevent its accidentaldetachment from the wall.

It is also an object of the invention to provide certain other new anduseful features arid the several advantages of the particularconstruction, arrangement and combination of parts, all .as hereinaftermore fully described, reference being had to the accompanying drawings,in which Figure 1, is a perspective view of a device embodying theinvention and showing the same attached to the wall of a building; Fig.2, is a side elevation of the same with parts in section to show theconstruction; Fig. 3, is an enlarged sectional detail of the securinghook and clamping foot; Fig. 4, a sectional detail showing a modifiedconstruction of hook for the brace loop; and Fig. 5, a further modifiedform of the same.

1 is a channel bar of suitable size and length, forming the horizontalmember upon which the platform or planking of the scaffold is supported,2 is the diagonal brace member and 3 the vertically extending memberconnecting the foot of the brace and the inner end of the platformmember. Within the channel of the platform member at its inner end issecured by rivets, a casting 4 having a right angle bend forming adownwardly projecting arm or hook 5 at one end and near its opposite endis provided with a transverse slot 6 extending downward from one sideinto a projection at the lower sideto form an eye to receive theconnecting loop member 3, said loop being engaged with the slot beforethe casting is riveted within the channel and is held in the lower endof the slot when the casting is so riveted, by the downwardly extendingflanges of the channel bar. Thehook 5 is adapted to be inserted throughan opening in the sheeting of the wall to which it is desired to attachthe support and to engage the inner surface thereof, it being providedwith a small spur 7 extending from its contact face to engage thesheeting and prevent the hook from turning.

Secured within the outer end of the channel of the platform member is acast ear 8 forming a pivot bearing for pivotally attaching the upper endof the brace member 2 to the platform member. Said brace member isattached to the ear by a pivot pin extending through the ear and throughthe side flanges of the brace, which embrace the ear,

and within the opposite end of the channel of said brace member isriveted a block of wood 9 or other suitable material with its endprojecting slightly beyond the end of the brace to contact the wall ofthe building and prevent the end of the channel bar from marring theclapboards.

To support the lower end of the brace memher, the connecting member 3 isprovided consisting of a continuous heavy wire or rod bent into the formof an elongated loop the upper end of which is attached to the platformmember as before described and through the lower end of which the braceprojects, said brace being provided on its outer surface with a hook 10to receive the transverse run of the loop. This hook may be rivetedsecurely to the bar, as shown in Fig. 2, or as shown in Fig. 4, it maybe adjustably attached to the bar so that if for any reason it isdesirable to support the outer end of the platform member in a higher orlower position or to raise or lower the foot of the brace to give itbetter contact, said hook may be moved up or down upon the brace, bolts11 passing through longitudinal slots 12 in the brace, being employed toattach said hook to the brace and the contact surfaces being formed withinterlocking teeth 13 to prevent slipping. For the purpose of cheapnessand ightness this hook may also be formed of a bent piece of heavy wire14 with its ends passed through openings in the bar and riveted downupon the inner side, as shown in Fig. 5.

Adjustable longitudinally toward and from the wall of the building uponthe inner end of the platform member, is a foot member extendinglaterally each way from said member to engage the outer surface of thesheeting and prevent the lateral swinging movement of the support. Thisfoot member consists of a flange 16 extending laterally each wayand'downwardlyfrom the end of a sleeve 17 slidable on the platformmember, the flange forming a broad flat surfacev to contact the outersurface of thesheeting and projecting from this surface near its loweredge is a spur 18 to enter the sheeting below the opening through whichthe hook 5 is inserted and more firmly hold the support in place. Toforce and hold the foot member firmly in contact with the outer surfaceof the sheeting and clamp the same between said foot and the hook 5, abrace rod 19 is pivotally attached at one end between ears 20 on thelower side of the sleeve of the foot and at its opposite end is adaptedto engage the bottom of the channel of the brace 2. The length of therod 19 is greater than the ra dius of a circle struck from the pivot ofsaid rod tangent to the bottom of the channel of the brace and thus whenthe end of the brace is engaged in the channel and forced downward, thefoot is forced firmly against the wall and the brace outward into theend of its connecting loop sup ort. This brace rod therefore not only hods the foot against the wall'but forms a strut extending diagonallyacross the support to lock and rigidly hold the brace member againstaccidental disengagement from its sup orting loop. The lower end of therod is s arpened to engage with teeth 21 formed in the bottom of thechannel and prevent the rod from slipping thereon.

Slidable longitudinally upon the outer end of the platform member is achannel bar fitting over the said. member and forming an extension 22therefor, the inner end of the extension member being provided with astra 23 embracing the platform member to hol the extension thereto andpermit it to slide thereon. Screw bolts 24 and 25 engage screw-threadedopenings in the extension member and are adapted to be turned into like0 enings in the platform member to secure t e extension in its extendedor retracted positions, and these bolts also serve as stops to preventthe planks forming a platform which may be placed thereon from slippingoff.

What we claim is I 1. In a scaffold support, the combination with asupporting member having a hook at one end and a brace member pivotallyattached at one end to the supporting member,

near its opposite end, of a loop pivotally attached at one end to thesupporting member near said hook and adapted to receive the brace memberat its lower end, a hook on the brace member to engage the loop, and abrace pivotally attached to the supporting member near its hook andadapted to engage the brace member at its opposite end and force thesame into engagement with the loop.

2. In a scaffold support, the combination with a supporting member, ahook on said member, a brace member pivotally attached to said memberand a connecting member connecting the said members, of means adjustably supported upon the supporting member adjacent to said hook forengaging the outer surface of a wall, and a brace extending between saidmeans and the brace member to hold said means in contact with the wall.

3. In a scafiold support, the combination with a supporting member, ahook on one end of said member, and a brace member pivotally attached-atone'end to the opposite end of said member, of a connecting memberpivotally attached at its upper end to the supporting member anddetachably engaging the free end of the brace member at its lower end,an adjustable foot on the supporting member, and a brace pivotallyattached at one end to said foot and adapted to engage the brace memberintermediate the ends thereof at its opposite end.

4. In a scaffold support, the combination with a supporting member, ahook on one end of said member, and a brace member pivotally attachedatone end to said member near its opposite end, of a loop formed of acontinuous wire pivotally attached at one end to the supporting memberby passing through an eye on said member and adapted to receive the freeend of the brace member, a foot adjustable longitudinally on thesupporting member toward and from the hook, and a brace pivotallyattached at one end to the foot and adapted to extend through the loopto engage the brace member intermediate the ends thereof at its 0positeend.

5. In a scaffold support, the combination with a supporting memberformed of channel iron, of a hook secured to one end of said memberwithin the channel, a brace member pivotally attached to the supportingmember at one end, a connecting member connecting the free end of thebrace member with the supporting member, a foot member consisting of asleeve portion slidable on the supporing member and a laterallyextending flange on one end of said sleeve, and a brace pivotallyattached at one end to the foot and adapted to engage the brace memberat its opposite end.

6. In a scaffold support, the combination with a supporting memberformed'of channel iron, of a hook secured to one end of said memberwithin the channel and provided With a spur on its contact face, acasting forming an ear secured Within the channel of the supportingmember near the opposite end thereof, a brace member formed of channeliron pivotally attached to said car at one end, a loop pivotallyattached at one end to the supporting member, a hook on the brace memberto engage the loop, a block in the free end of the channel bar formingthe brace member and projecting beyond the end thereof, a foot sleevedon the supporting member and provided With a spur on its contact face, arod pivotally attached at one end to the foot and having a sharpenedend, and teeth on the brace member adapted to be r 5 engaged by thesharpened end of the said rod.

In testimony whereof We affiX our signatures in presence of tWoWitnesses.

Witnesses 2 CHAS. B. SHUMWAY, OTTO F. BARTHEL.

